Furuno DRS12ACM, Installation Manual

Page: 14 / 52

7
Using inside fixing holes of the sensor housing
If this radar is replacing a FURUNO radar whose mounting dimensions are the same as this one
(140 x 150 mm), it may be possible to use its mounting platform. This method requires removal of
the RF unit from the radar sensor to access inside fixing holes. Use hex bolts, flat washers, spring
washers and nuts (local supply) to mount the radar sensor.
1. Unfasten four bolts from the cover to open the radar sensor.
2. Unplug the PCS connector from RF unit.
3. Separate upper chassis from lower chassis by removing two bolts (M8x25).
4. Remove RF unit by unfastening two hex bolts and two fixing bolt.
For DRS12A/25A, unfasten four hex bolts, not two fixing bolts, to remove the RF unit.
5. Lay the corrosion-proof rubber mat (supplied) on the mounting platform.
6. Fasten the lower chassis to the mounting platform with hex bolts, spring washers, flat washers
and nuts (local supply), and then coat flat washers, nuts and exposed parts of bolts with sili-
cone sealant. Cut a slit in the rubber bushing and insert bolt into the bushing. Do not use seal
washers.
7. Remount RF unit.
8. Coat outside fixing holes with silicone sealant and then attach caps (supplied) to holes.
9. Do steps 6-8 on page 6.
Bolt
M8x25,
2 pcs.
Inside fixing holes
RF unit
Upper chassis
PCS connector
Hex bolt
2 pcs.
Fixing bolt
(2 pcs.)
Lower chassis
(Example: DRS4A/6A)